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Finding the Fourth Proportional to 11,356, 17,038.32 and 4,431.04

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Solution

The fourth proportional to 11,356, 17,038.32 and 4,431.04 is: 6,648.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356 : 17,038.32 = 4,431.04 : x
  2. Step 2: Convert to fraction form
    11,356/17,038.32 = 4,431.04/x
  3. Step 3: Cross multiply
    11,356x = 17,038.32 × 4,431.04
  4. Step 4: Simplify right side
    11,356x = 75,497,477.45
  5. Step 5: Solve for x
    x = 75,497,477.45/11,356
  6. Step 6: Final answer
    x = 6,648.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.